taxonID	type	description	language	source
00403F15FFCEFFE8FC4AFE08FBD3FD92.taxon	description	E 4 E 7532692 BB	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCEFFE8FC4AFE08FBD3FD92.taxon	discussion	REMARKS. See Brooks [2005] for redescription of the genus and synonymy, Grichanov [2010] and Naglis et al. [2013] for review and discussion.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCDFFEAFEC4FEB3FC68FAD2.taxon	description	Figs 1 – 6.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCDFFEAFEC4FEB3FC68FAD2.taxon	materials_examined	MATERIAL. Holotype ♂, Iran, Hormozgan prov., Sirik, Azini wharf, 0 m, 26 ° 19´39.9 ´´ N, 057 ° 06´15.7 ´´ E, 13. V. 2022, pan trap, Mofidi & Hajiesmaeilian leg. (ZIN). Holotype in good condition. Paratypes: Iran: 7 ♂, same data as for holotype (HMIM and ZIN; one male terminalia dissected and stored in glycerin in microvial pinned with the specimen); 1 ♂, Iran, Hormozgan Prov., Qeshm Island, DoKuhak, 0 m, 26 ° 59´5.0 ´´ N, 056 ° 11´19 ´´ E, light trap, 4. XI. 2021, E. Gilasian leg. (ZIN); 2 ♂, Iran, Hormozgan prov., Gabrik protect- ed area, Keyki, 0 m, 25 ° 41´49.7 ´´ N, 058 ° 30´32.9 ´´ E, 15. V. 2022, light trap, M. Mofidi & A. Hajiesmaeilian leg. (HMIM and ZIN); 1 ♂, Iran, Bushehr Prov., Asaluyeh, Nayband, next to Mangrove forest, – 10 m, 27 ° 24´70 ´´ N, 052 ° 40´9.0 ´´ E, light trap, 6 – 8. XI. 2021, H. Naserzadeh leg. (ZIN; male terminalia dissected and stored in glycerin in microvial pinned with the specimen); 7 ♂, Oman, Barr al-Hikman peninsula, 300 km S Muscat, 20 ° 44´24 ´´ N, 58 ° 41´45.6 ´´ E, yellow pan trap, 19 – 24. XI. 2011, P. S. Tomkovich leg. (ZMUM).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCDFFEAFEC4FEB3FC68FAD2.taxon	description	DESCRIPTION. Male (Fig. 1). Length (mm): body 3.3 – 3.8, wing 2.9 – 3.0 / 1.1 – 1.2, antenna 0.8 – 0.9. Setae on body and legs are black except as noted below. Head (Fig. 2) wider than high; frons, face and postcranium densely white pollinose; frons 1.5 times wider than high; one strong black vertical seta bend forward, one shorter yellow postvertical, a pair of strong black ocellar setae present; eyes with short hairs; postocular setae yellow, uniseriate; upper and lower postoculars stronger than lateral setae; face glabrous, broad, widest under antennae, 1.4 – 1.6 times wider than height of postpedicel, clypeus small, almost reaching lower margin of eyes; antenna (Fig. 3) as long as height of head; yellow-orange; scape and pedicel simple, with short setulae; postpedicel greyish at apex, elongate-triangular, 1.7 – 1.9 times as long as high, with acute apex and very short hairs; arista-like stylus nearly mid-dorsal, black, about 1.3 times longer than postpedicel, with microscopic hairs; length (mm) of scape, pedicel, postpedicel, stylus (stylomeres 1 and 2), 0.10 / 0.07 / 0.41 / 0.11 / 0.40; palpus and proboscis small, palpus yellow with black setae, proboscis brownish, with yellow and brownish cilia. Thorax mostly greenish black, grey pollinose, with yellow humeral callus, scutellum and metapleuron; 6 strong dorsocentral setae with 5 th seta shifted towards median axis; 2 rows of strong acrostichals; 2 strong notopleural, 1 strong humeral, 1 posthumeral setae present; proepisternum with 1 strong black seta above fore coxa; scutellum with 2 strong setae and 2 lateral hairs. Legs whitish-yellow, with apex of hind tibia and tarsus from middle of basitarsus more or less dark; all coxae yellow; fore and mid coxae with several black setae anteriorly; hind coxa with 1 strong external seta in middle; fore tibia with 2 – 3 strong anterodorsal, 2 – 3 posterodorsal bristles; fore femur, tibia and tarsomere (from first to fifth) length (mm): 0.89 / 0.84 / 0.40 / 0.19 / 0.16 / 0.14 / 0.14; mid femur with 1 anterior subapical bristle; mid tibia with 3 anterodorsal, 3 posterodorsal, 1 strong and 1 weak ventrals at middle and 4 – 5 apical bristles; segments 1 – 4 of mid tarsus each with short apical setae; mid femur, tibia and tarsomere (from first to fifth) length (mm): 1.07 / 1.29 / 0.55 / 0.37 / 0.32 / 0.24 / 0.18; hind femur (Fig. 4) with 1 anterodorsal preapical bristle, 1 small anteroventral preapical, row of sparse ventral setae, half as long as femur height, and row of long dense dorsal setae, nearly as long as femur height; hind tibia with 4 anterodorsal, 4 posterodorsal, 3 – 4 apical bristles; hind basitarsus with 1 short basoventral seta; tarsomeres 1 – 4 each with apicoventral setae; hind femur, tibia and tarsomere (from first to fifth) length (mm): 1.22 / 1.46 / 0.46 / 0.57 / 0.41 / 0.32 / 0.21. Wing hyaline, simple; veins brownish yellow; R 1 reaching nearly 2 / 5 of wing; R 2 + 3 almost straight; length of costa between R 1, R 2 + 3, R 4 + 5 and M 1 + 2 (mm), 0.93 / 0.77 / 0.05 (holotype); R 4 + 5 mainly straight, slightly curved posteriad in distal 1 / 4; M 1 + 2 with right angular sinuation in middle of distal part, with short stublike vein, joining costa before wing apex; crossvein dm-m straight, forming right angles with longitudinal veins; length of dm-m and distal part of M 4, 0.32 / 0.71; posterior wing margin evenly convex; anal vein weak; anal lobe pronounced; anal angle obtuse; lower calypter yellow with white cilia; halters yellow. Abdomen conoid (dorsal view), mostly yellow, weakly whitish pollinose; tergites 4 and 5 widely black dorsally, yellow ventrally and along posterior margin; tergite 3 with or without small brown spot dorsally in middle; tergite 6 hardly visible; segment 7 small, glabrous; segment 8 yellow, with several long dark setae; epandrium and appendages symmetric, yellow (Figs 5 – 6); hypandrium deeply bifurcated, with narrow curved lobes, pointed at apex; phallus narrow, pointed; distoventral epandrial lobe fused with epandrium, with 3 pedunculate setae; 1 epandrial seta; postgonite narrow, strongly curved ventrally, pointed at apex; surstylus with 2 nearly straight narrow lobes of unequal length; ventral lobe short, with 2 simple ventral setae, 1 long and 2 short thickened dorsal setae at apex; dorsal lobe with very long basidorsal seta, 1 long subapical simple seta, 2 short thick seta and few setulae at apex; cercus yellow, 0.8 times as long as epandrium, with short hairs and strong black setae, narrow, with rounded apex. Female. Unknown.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCDFFEAFEC4FEB3FC68FAD2.taxon	etymology	ETYMOLOGY. The name of the new species is dedicat- ed to one of the collectors of the type series, Dr. Abolfazl Hajiesmaeilian (Iranian Research Institute of Plant Protection, Tehran).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCDFFEAFEC4FEB3FC68FAD2.taxon	distribution	DISTRIBUTION. Palaearctic: Iran (Bushehr, Hormozgan); Afrotropical: Oman.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCDFFEAFEC4FEB3FC68FAD2.taxon	diagnosis	DIAGNOSIS. Argyrochlamys hajiesmaeiliani sp. n. belongs to the A. impudicus species group [Grichanov, 2010]. The new species keys to A. impudicus, differing from the latter in shorter body; arista-like stylus of antenna about 1.3 times longer than postpedicel; mostly yellow abdomen; distal section of M 1 + 2 with stublike vein; costal section between R 2 + 3 and R 4 + 5 0.8 times as long as costal section between R 1 and R 2 + 3; hypandrium with deeply bifurcated symmetrical lobes; cercus 0.8 times as long as epandrium. Argyrochlamys impudicus differs in longer body; arista-like stylus of antenna nearly 2.5 times longer than postpedicel; mostly black abdomen; distal section of M 1 + 2 without stublike vein; costal section between R 2 + 3 and R 4 + 5 1.2 times as long as costal section between R 1 and R 2 + 3; hypandrium with asymmetrically thick and long lobes; cercus about as long as epandrium [Lamb, 1922; Brooks, 2005]. Argyrochlamys hajiesmaeiliani sp. n. males have very similar habitus and hypopygium morphology with A. nigrescens sp. n. These species differ from each other in mainly morphometric characters (see diagnostic Table in the Discussion section). Nevertheless, the abdomen has tergites 1 – 3 mostly or completely yellow in A. hajiesmaeiliani sp. n. and only tergite 2 mostly yellow in A. nigrescens sp. n.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCCFFECFC3FFAC8FD70FAE9.taxon	description	Figs 7 – 14.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCCFFECFC3FFAC8FD70FAE9.taxon	materials_examined	MATERIAL. Holotype ♂, Iran, Bushehr Prov., Asaluyeh, Nayband, next to Mangrove forest, – 10 m, 27 ° 24´70 ´´ N, 052 ° 40´9.0 ´´ E, 6 – 8. XI. 2021, yellow pan trap, E. Gilasian leg. (ZIN; male terminalia dissected and stored in glycerin in microvial pinned with the specimen). Paratype. 1 ♂, Iran, Hormozgan prov., Sirik, Azini wharf, 0 m, 26 ° 19´39.9 ´´ N, 057 ° 06´15.7 ´´ E, 13. V. 2022, pan trap, Mofidi & Hajiesmaeilian leg. (HMIM).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCCFFECFC3FFAC8FD70FAE9.taxon	description	DESCRIPTION. Male (Fig. 7). Similar to Argyrochlamys hajiesmaeiliani sp. n. in all respects except as noted. Length (mm): body 3.5, wing 3.4 / 1.2, antenna 0.9. Face (Fig. 8) widest under antennae, 1.8 times wider than height of postpedicel; antenna (Fig. 9) with postpedicel elongate-ovate, 1.6 times as long as high; arista-like stylus 1.7 times as long as postpedicel, positioned at distal 1 / 3 of dorsal surface; length (mm) of scape, pedicel, postpedicel, stylus (stylomeres 1 and 2), 0.10 / 0.06 / 0.30 / 0.12 / 0.39. Thorax mostly greenish black, with brown scutellum and yellow posterior margin of metapleuron. Legs yellow, with apex of hind tibia and whole tarsus black; mid and hind coxae brown in basal half; fore tibia with 3 small anterodorsal, 2 small posterodorsal bristles, 0 – 1 minute posteroventral seta; fore femur, tibia and tarsomere (from first to fifth) length (mm): 0.91 / 0.87 / 0.45 / 0.27 / 0.22 / 0.17 / 0.17; mid tibia with 3 anterodorsal, 3 posterodorsal, 2 weak ventrals at middle and 4 apical bristles; mid femur, tibia and tarsomere (first and second) length (mm): 1.05 / 1.18 / 0.55 / 0.40 / - / - / -; hind femur with 1 anterodorsal preapical bristle, 1 small anteroventral preapical, rather short ventral setae, and row of dense dorsal setae, at most half as long as femur height; hind femur, tibia and tarsomere (from first to fifth) length (mm): 1.21 / 1.55 / 0.38 / 0.59 / 0.47 / 0.29 / 0.24. Wing (Fig. 10): length of costa between R 1, R 2 + 3, R 4 + 5 and M 1 + 2 (mm), 0.91 / 0.94 / 0.06; length of dm-m and distal part of M 4, 0.24 / 0.74. Abdomen (Fig. 11): mostly black; tergite 1 with yellow posterior margin; tergite 2 mostly yellow, with small black spot dorsally in middle, brown laterally; tergite 3 with yellow anterior and posterior margin; tergites 4 and 5 black, and segment 8 black; epandrium and appendages symmetric (Figs 12 – 14); hypandrium black, deeply bifurcated, with narrow curved lobes, narrow at apex; phallus narrow; distoventral epandrial lobe fused with epandrium, with 3 pedunculate setae; 1 epandrial seta; postgonite narrow, strongly curved ventrally, pointed at apex; surstylus brownish, with 2 almost straight narrow lobes of unequal length; ventral lobe short, with 2 simple ventral setae, 1 long and 1 – 2 short thickened dorsal setae at apex; dorsal lobe with very long basidorsal seta, 1 long subapical simple seta, 2 short thick seta and few setulae at apex; cercus yellow, 0.8 times as long as epandrium, with short hairs and strong black setae, narrow, with rounded apex. Female. Unknown.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCCFFECFC3FFAC8FD70FAE9.taxon	etymology	ETYMOLOGY. The Latin name of the species refers to the mostly black abdomen.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCCFFECFC3FFAC8FD70FAE9.taxon	distribution	DISTRIBUTION. Palaearctic: Iran (Bushehr, Hormozgan).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCCFFECFC3FFAC8FD70FAE9.taxon	diagnosis	DIAGNOSIS. Argyrochlamys nigrescens sp. n. males have very similar habitus and hypopygium morphology with A. hajiesmaeiliani sp. n. These species differ from each other in mainly morphometric characters (see diagnostic Table in the Discussion section). Nevertheless, the abdomen has tergites 1 – 3 mostly or completely yellow in A. hajiesmaeiliani sp. n., and only tergite 2 mostly yellow in A. nigrescens sp. n.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCAFFEEFF0EFAADFEDDFDDF.taxon	description	Figs 15 – 23.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCAFFEEFF0EFAADFEDDFDDF.taxon	materials_examined	MATERIAL. Holotype ♂, Oman, Barr al-Hikman peninsula, 300 km S Muscat, 20 ° 44´24 ´´ N, 58 ° 41´45.6 ´´ E, yellow pan trap, 19 – 24. XI. 2011, P. S. Tomkovich leg. (ZMUM). Holotype in good condition. Paratypes: 7 ♂, 1 ♀, same data as for holotype (ZIN, ZMUM; one male terminalia dissected and stored in glycerin in microvial pinned with the specimen).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCAFFEEFF0EFAADFEDDFDDF.taxon	description	DESCRIPTION. Male (Fig. 15). Length (mm): body 3.5, wing 3.0 / 1.1, antenna 0.9. Setae on body and legs are black except as noted below. Head (Fig. 16) wider than high; frons, face and postcranium densely white pollinose; frons 1.5 times wider than high; one strong black vertical seta bend forward, one shorter yellow postvertical, a pair of strong black ocellar setae present; eyes with short hairs; postocular setae yellow, uniseriate; upper and lower postoculars strong- er than lateral setae; face glabrous, broad, widest under antennae, 1.5 times wider than height of postpedicel, clypeus small, not reaching lower margin of eyes; antenna (Fig. 17) about as long as height of head; yellow-orange; scape and pedicel simple, with short setulae; postpedicel elongate-triangular, 2.5 times as long as high, with acute apex and very short hairs, 2.7 times as long as arista-like stylus, which nearly apical, black, with microscopic hairs; length (mm) of scape, pedicel, postpedicel, stylus (stylomeres 1 and 2), 0.10 / 0.07 / 0.41 / 0.11 / 0.40; palpus and proboscis small, yellow, with yellow, black and brownish cilia. Thorax entirely orange-yellow, whitish pollinose, with black bristles and setae; 6 strong dorsocentral setae with 5 th seta shifted towards median axis; 2 rows of strong acrostichals; 2 strong notopleural, 1 strong humeral, 1 posthumeral setae present; proepisternum with 1 strong seta above fore coxa; scutellum with 2 long strong setae and 2 small lateral setae. Legs whitish-yellow, with mid tarsomeres 4 and 5, hind tarsus from apex of basitarsus brownish to brown; all coxae yellow; fore and mid coxae with several black setae anteriorly; hind coxa with 1 strong black external seta in middle; fore tibia with 2 anterodorsal, 2 small posterodorsal, 1 posteroventral bristles; fore femur, tibia and tarsomere (from first to fifth) length (mm): 0.9 / 0.81 / 0.46 / 0.25 / 0.19 / 0.12 / 0.13; mid femur with 1 anterior subapical bristle; mid tibia with 2 anterodorsals, 3 posterodorsals, 1 strong and 1 weak ventrals at middle and 4 – 5 apical bristles; segments 1 – 4 of mid tarsus each with short apical setae; mid femur, tibia and tarsomere (from first to fifth) length (mm): 1.12 / 1.22 / 0.66 / 0.55 / 0.45 / 0.3 / 0.22; hind femur with 1 anterodorsal preapical bristle, 1 small anteroventral preapical, and row of short dorsal setae, at most 1 / 3 as long as femur height; hind tibia with 3 anterodorsal, 3 posterodorsal, 3 – 4 apical bristles; hind basitarsus with 1 short basoventral seta; tarsomeres 1 – 4 each with apicoventral setae; hind femur, tibia and tarsomere (from first to fifth) length (mm): 1.23 / 1.54 / 0.45 / 0.74 / 0.58 / 0.38 / 0.25. Wing (Fig. 18) hyaline, simple; veins yellow; R 1 reaching 2 / 5 of wing; R 2 + 3 almost straight; length of costa between R 1, R 2 + 3, R 4 + 5 and M 1 + 2 (mm), 1.25 / 0.49 / 0.09; R 4 + 5 mainly straight, slightly curved posteriad in distal 1 / 4; M 1 + 2 with gentle sinuation in middle of distal part, joining costa before wing apex; crossvein dm-m straight, forming right angles with longitudinal veins; length of dm-m and distal part of M 4, 0.28 / 0.65; posterior wing margin evenly convex; anal vein weak; anal lobe pronounced; anal angle obtuse; lower calypter yellow with white cilia; halters yellow. Abdomen conoid (dorsal view), entirely orange-yellow, weakly whitish pollinose; tergite 6 hardly visible; segment 7 small, glabrous; segment 8 yellow, with several black setae; epandrium and appendages (Figs 19 – 22) almost symmetric, yellow; hypandrium (Fig. 22) bifurcated at apex, with thick curved lobes, pointed at apex; phallus bulbous at base, narrow apically, pointed; distoventral epandrial lobe fused with epandrium, with 3 pedunculate setae; 1 epandrial seta; postgonite narrow, strongly curved ventrally, pointed at apex, with subapical indentation; surstylus with 2 narrow lobes of unequal length; ventral lobe short, curved, with 2 simple ventral setae, 1 long and 2 short thickened dorsal setae at apex; dorsal lobe straight, with very long basidorsal seta, 1 long subapical simple seta, and few setulae at apex; cercus yellow, 0.6 times as long as epandrium, with yellow hairs and black setae, narrow, with rounded apex. Female. Length (mm): body 3.1, wing 3.1, antenna 0.8. Similar to male in all respects except as noted: antenna (Fig. 23) with postpedicel 1.9 times as long as high, 1.2 times as long as arista-like stylus; length (mm) of scape, pedicel, postpedicel, stylus (stylomeres 1 and 2), 0.09 / 0.04 / 0.37 / 0.06 / 0.26; femur, tibia and tarsomere (from first to fifth) length (mm): fore leg: 0.94 / 0.87 / 0.43 / 0.23 / 0.18 / 0.14 / 0.15; mid leg: 1.04 / 1.24 / 0.59 / 0.46 / 0.36 / 0.29 / 0.19; hind leg: 1.16 / 1.54 / 0.43 / 0.66 / 0.57 / 0.39 / 0.21; oviscapt with ventral lobes; each hemitergite with two thick spines; cercus with long yellow setae.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCAFFEEFF0EFAADFEDDFDDF.taxon	etymology	ETYMOLOGY. The name of the new species is dedicat- ed to the collector of the type series, Konstantin Tomkovich (Moscow, Russia).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCAFFEEFF0EFAADFEDDFDDF.taxon	distribution	DISTRIBUTION. Afrotropical: Oman.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFCAFFEEFF0EFAADFEDDFDDF.taxon	diagnosis	DIAGNOSIS. Argyrochlamys tomkovichi sp. n. belongs to the A. impudicus species group [Grichanov, 2010]. The new species keys to A. marshalli, differing from the latter in shorter female body; coxae with black cilia and bristles; female arista-like stylus distinctly shorter than postpedicel (20 / 25); costal section between R 1 and R 2 + 3 2.8 times longer than costal section between R 2 + 3 and R 4 + 5. A. marshalli females have coxae with yellow cilia and bristles; arista-like stylus as long as postpedicel; costal section between R 1 and R 2 + 3 3.2 times longer than costal section between R 2 + 3 and R 4 + 5 [Grichanov, 2010].	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFF1AFDB2FDCDFB2C.taxon	distribution	DISTRIBUTION. Type locality: Mauritius, Tamarin Falls. The species is known only from type locality.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFF1AFDB2FDCDFB2C.taxon	discussion	REMARKS. Camptoneura decolor was transferred to Argyrochlamys by Dyte [1975], who placed the species in synonymy to A. impudicus. However, comparing descriptions of the two species, we have found that they are certainly different. Thus, A. decolor was described with body size 3 mm; abdominal tergite 1 mostly yellow and tergite 2 entirely yellow, other segments with posterior margins of tergites yellow; thorax with yellow metapleuron and scutellum; mid coxa mostly black, yellow at apex. In contrast, A. impudicus was described with body size 4.8 mm; abdomen blackish green, with only posterior margins of tergites yellow; thorax entirely dark; mid coxa yellow, brownish at base. Therefore, we reinstate A. decolor as a true species, although some of the listed characters may vary. It is interesting that both species inhabit the island of Mauritius (see a record of A. impudicus in Grichanov et al. [2011]). The wing venation in A. decolor is closer to A. impudicus, than to new Iranian species described in this paper. Both A. decolor and A. impudicus have short vein R 2 + 3 and have no stublike vein M 2 (see also diagnostic Table in the Discussion section).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFEEDFB61FB5CFE2E.taxon	materials_examined	MATERIAL. 1 ♂, Iran, Bushehr Prov., Asaluyeh, Nayband, next to Mangrove forest, – 10 m, 27 ° 24´70 ´´ N, 052 ° 40´9.0 ´´ E, light trap, 6 – 8. XI. 2021, H. Naserzadeh leg. (HMIM).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFEEDFB61FB5CFE2E.taxon	distribution	DISTRIBUTION. Type locality: Seychelles: Long I., Mahe. Afrotropical: Mauritius, Oman, Seychelles; Oriental: It is worth noting, that the hypopygiums in species of closely related genus Pseudargyrochlamys Grichanov, 2006, are also quite similar to each other, being distinguished in the cercus length and length of setae on the distoventral epandrial lobe [Grichanov, 2004, 2020]. There are some more dolichopodid genera with species indistinguishable by male genitalia, but well differing from their relatives in male secondary sexual characters Chagos Archipelago, India (Gujarat), Sri Lanka; Palaearctic: Iran.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFEEDFB61FB5CFE2E.taxon	discussion	REMARKS. Brooks [2005] mentioned Dyte´s unpublished records of A. impudicus and A. cavicola from Oman. Nevertheless, these records may belong to the new species described in this paper and must be confirmed.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFC22FE62FB6DFD12.taxon	materials_examined	MATERIAL. 1 ♀, Iran, Hormozgan prov., Bandar-e Khamir, Marduo Island, 3 m, 26 ° 58´33 ´´ N, 055 ° 40´25 ´´ E, light trap, 30. X. 2021, H. Naserzadeh leg. (ZIN); 1 ♀, Iran, Bushehr Prov., Asaluyeh, Nayband, next to Mangrove forest, – 10 m, 27 ° 24´70 ´´ N, 052 ° 40´9.0 ´´ E, rotting banana trap, 6 – 8. XI. 2021, E. Gilasian leg. (ZIN).	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
00403F15FFC8FFEEFC22FE62FB6DFD12.taxon	discussion	REMARKS. These females have about the same size and coloration of abdomen as those in male A. hajiesmaeiliani sp. n., but may belong to different species.	en	Grichanov, I. Ya., Gilasian, E. (2023): Three new species of the genus Argyrochlamys Lamb, 1922 (Diptera: Dolichopodidae) from mangroves of Iran and Oman. Russian Entomological Journal 32 (2): 210-220, DOI: 10.15298/rusentj.32.2.12, URL: http://dx.doi.org/10.15298/rusentj.32.2.12
